回复：去墨西哥带防晒霜类的东东，可以带上飞机吗？要托运多不合算？

分两种情况：

1. Carry-on luggage: Items must be 3 oz (100 ml) or less and they must all fit into a one quart ("medium" sized) closed zip-lock type bag. You are only allowed one bag per person.

2. Checked luggage: There are no size restrictions for liquids, gels, or pastes in checked luggage so you can pack larger sized items. It is recommended however that they be placed is a sealed plastic bag to protect you other items against possible leakage.